25688886512 has 20 divisors (see below), whose sum is σ = 49855328400. Its totient is φ = 12822995328.

The previous prime is 25688886497. The next prime is 25688886557. The reversal of 25688886512 is 21568888652.

It is a super-2 number, since 2×25688886512² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1330613 + ... + 1349780.

It is an arithmetic number, because the mean of its divisors is an integer number (2492766420).

Almost surely, 2^25688886512 is an apocalyptic number.

It is an amenable number.

25688886512 is a deficient number, since it is larger than the sum of its proper divisors (24166441888).

25688886512 is a wasteful number, since it uses less digits than its factorization.

25688886512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681000 (or 2680994 counting only the distinct ones).

The product of its digits is 14745600, while the sum is 59.

The spelling of 25688886512 in words is "twenty-five billion, six hundred eighty-eight million, eight hundred eighty-six thousand, five hundred twelve".